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a8fde8be9a
The presence of a sentinel (an empty {}) at the end of the ctl_table array
now causes a "sysctl table check failed" error because the kernel attempts
to validate the null entry as a functional node.
Deleted the empty {} from the ntfs_sysctls array to prevent
the "procname is null" and "No proc_handler" errors and updated the base
path from "fs" to "fs/ntfs" to ensure the ntfs-debug node is correctly
located under /proc/sys/fs/ntfs/.
Reported-by: Woody Suwalski <terraluna977@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Code for sysctl handling in NTFS Linux kernel driver.
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*
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* Copyright (C) 1997 Martin von Löwis, Régis Duchesne
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* Copyright (c) 2002-2005 Anton Altaparmakov
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*/
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#ifdef DEBUG
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#include <linux/module.h>
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#ifdef CONFIG_SYSCTL
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#include <linux/proc_fs.h>
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#include <linux/sysctl.h>
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#include "sysctl.h"
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#include "debug.h"
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/* Definition of the ntfs sysctl. */
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static const struct ctl_table ntfs_sysctls[] = {
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{
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.procname = "ntfs-debug",
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.data = &debug_msgs, /* Data pointer and size. */
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.maxlen = sizeof(debug_msgs),
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.mode = 0644, /* Mode, proc handler. */
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.proc_handler = proc_dointvec
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},
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};
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/* Storage for the sysctls header. */
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static struct ctl_table_header *sysctls_root_table;
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/*
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* ntfs_sysctl - add or remove the debug sysctl
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* @add: add (1) or remove (0) the sysctl
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*
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* Add or remove the debug sysctl. Return 0 on success or -errno on error.
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*/
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int ntfs_sysctl(int add)
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{
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if (add) {
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sysctls_root_table = register_sysctl("fs/ntfs", ntfs_sysctls);
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if (!sysctls_root_table)
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return -ENOMEM;
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} else {
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unregister_sysctl_table(sysctls_root_table);
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sysctls_root_table = NULL;
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}
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return 0;
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}
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#endif /* CONFIG_SYSCTL */
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#endif /* DEBUG */
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